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解决 order by 问题

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程序员小墨 2022-10-20 01:17:03 +08:00
parent dc80d8d527
commit 7ec08d1e55
3 changed files with 3 additions and 4 deletions
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4
netease_music/src/getInfo/albumInfoUtils.js
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@ -27,12 +27,10 @@ SELECT * FROM album WHERE (full_description = '' or full_description is null) an
*/ */
async function fetchAll({ args = {}, isUpdate = false }) { async function fetchAll({ args = {}, isUpdate = false }) {
if (args.order) console.log("存在 DISTINCT，自动升序排序，无需指定ORDER BY");
console.log("start fetching albums ..."); console.log("start fetching albums ...");
if (isUpdate) { if (isUpdate) {
var sql = ` var sql = `
-- SELECT DISTINCT album_id FROM album WHERE (full_description = '' or full_description is null) and description like '%专辑《%》，简介：%' and description not regexp '^.*?专辑《.*?》，简介：[:space:]*?。，更多.*$'
SELECT album_id FROM album WHERE (full_description = '' or full_description is null) and description like '%专辑《%》，简介：%' and description not regexp '^.*?专辑《.*?》，简介：[:space:]*?。，更多.*$' SELECT album_id FROM album WHERE (full_description = '' or full_description is null) and description like '%专辑《%》，简介：%' and description not regexp '^.*?专辑《.*?》，简介：[:space:]*?。，更多.*$'
`; `;
} else { } else {
@ -42,8 +40,8 @@ async function fetchAll({ args = {}, isUpdate = false }) {
].join(' AND '); ].join(' AND ');
var sql = ` var sql = `
-- 查出来通过代码去重，提高速度 -- 查出来通过代码去重，提高速度
-- SELECT DISTINCT album_id FROM song_album_relation WHERE ${whereClause} AND album_id NOT IN ( SELECT album_id FROM album )
SELECT album_id FROM song_album_relation WHERE ${whereClause} AND album_id NOT IN ( SELECT album_id FROM album ) SELECT album_id FROM song_album_relation WHERE ${whereClause} AND album_id NOT IN ( SELECT album_id FROM album )
${args.order ? `ORDER BY album_id ${args.order}` : ''}
${args.limit ? `LIMIT ${args.limit}` : ''} ${args.limit ? `LIMIT ${args.limit}` : ''}
`; `;
console.log(sql); console.log(sql);

2
netease_music/src/getInfo/artistInfoUtils.js
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@ -23,7 +23,6 @@ async function getFromDatabase({ artistId }) {
// 从数据库中查出还缺少的歌手，并进行爬取 // 从数据库中查出还缺少的歌手，并进行爬取
async function fetchAll({ args = {} }) { async function fetchAll({ args = {} }) {
if (args.order) console.log("存在 DISTINCT，自动升序排序，无需指定ORDER BY");
console.log("start fetching artists ..."); console.log("start fetching artists ...");
let whereClause = [ let whereClause = [
args.min ? `artist_id > ${args.min}` : '1=1', args.min ? `artist_id > ${args.min}` : '1=1',
@ -33,6 +32,7 @@ async function fetchAll({ args = {} }) {
-- 查出来通过代码去重，提高速度 -- 查出来通过代码去重，提高速度
-- SELECT DISTINCT artist_id FROM song_artist_relation WHERE ${whereClause} AND artist_id NOT IN ( SELECT artist_id FROM artist ) -- SELECT DISTINCT artist_id FROM song_artist_relation WHERE ${whereClause} AND artist_id NOT IN ( SELECT artist_id FROM artist )
SELECT artist_id FROM song_artist_relation WHERE ${whereClause} AND artist_id NOT IN ( SELECT artist_id FROM artist ) SELECT artist_id FROM song_artist_relation WHERE ${whereClause} AND artist_id NOT IN ( SELECT artist_id FROM artist )
${args.order ? `ORDER BY artist_id ${args.order}` : ''}
${args.limit ? `LIMIT ${args.limit}` : ''} ${args.limit ? `LIMIT ${args.limit}` : ''}
`; `;
console.log(sql); console.log(sql);

1
netease_music/src/getInfo/lyricInfoUtils.js
View File

@ -15,6 +15,7 @@ async function fetchAll({ args = {} }) {
].join(' AND '); ].join(' AND ');
var sql = ` var sql = `
SELECT song_id FROM song WHERE ${whereClause} AND song_id NOT IN ( SELECT song_id FROM lyric ) SELECT song_id FROM song WHERE ${whereClause} AND song_id NOT IN ( SELECT song_id FROM lyric )
${args.order ? `ORDER BY song_id ${args.order}` : ''}
${args.limit ? `LIMIT ${args.limit}` : ''} ${args.limit ? `LIMIT ${args.limit}` : ''}
`; `;
console.log(sql); console.log(sql);